Applies to: SharePoint Foundation 2010
Accepts encrypted data and decrypts that data in place.
HRESULT HrDecrypt( ULONG ulOffset, BYTE *pbData, DWORD cbData, DWORD *pcbData ) PURE;
[in] Where in the block to start the decryption. Generally set to zero unless stream functions are decrypting portions of a block.
[in/out] The data to be decrypted.
[in] The amount, in bytes, of data to decrypt.
[out] The amount of data that the function was actually able to decrypt. Under normal conditions, this is a DWORD whose value is equal to cbData.
In general, this method is not called directly by the Information Rights Management (IRM) protector. Instead, this method is used by a stream operator, also written by the protector’s developer, which facilitates a higher level view of encrypting data.